My Boston Terrier likes to go "frog fishing" in the ditch across the road from my house. Today she came into the yard with her "prize", a young bullfrog. I wasn't sure if it was dead or just stunned, but she dropped it on the grass, so I scooped it up, and it appeared unharmed. So, I took it to my ponds and submerged it partway in the stream and sure enough, it "woke up" and scooted to the edge and went underwater. I checked 30 minutes later, and it was in the same spot. Funny thing, she never goes fishing for them in the ponds. I guess she likes to get into the water and fish.
Oh, and I know this is for frogs only, but I spotted a 5" painted turtle crossing my driveway, appearing to be headed to the farm pond in the pasture, so I gave him a free ride! He/she seemed to be very happy to get to the water, and once it got to where it was a little deeper, it quickly ducked under and and into the grass.